Yeah for sure... season 18/19 for example, we would have had campbell, turnbull, hastie and cadden all in the starting line up. I'm sure there's other examples of that as well, and I could be missing one or two players in that list.
I was just trying to plot out what year they established themselves. Not looked into it any more than above, but as I said it feels like on aveage 1 academy graduate per season establishing themselves as a first teamer, which seems decent IMO.